2621254 has 4 divisors (see below), whose sum is σ = 3931884. Its totient is φ = 1310626.

The previous prime is 2621239. The next prime is 2621257. The reversal of 2621254 is 4521262.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4521262 = 2 ⋅2260631.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655312 + ... + 655315.

It is an arithmetic number, because the mean of its divisors is an integer number (982971).

2^2621254 is an apocalyptic number.

2621254 is a deficient number, since it is larger than the sum of its proper divisors (1310630).

2621254 is a wasteful number, since it uses less digits than its factorization.

2621254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310629.

The product of its digits is 960, while the sum is 22.

The square root of 2621254 is about 1619.0287211782. The cubic root of 2621254 is about 137.8805589777.

The spelling of 2621254 in words is "two million, six hundred twenty-one thousand, two hundred fifty-four".